Figure out what they're eating and where it's at and be there. Just the light from the longer day can get underwater creatures active and the fish know it. Perch are nearing the spawn and are in a heavy feeding mode, Crappies are into egg development like the Perch have been the last month or two, 'gills are starting egg making and are taking advantage of the easy pickin's like the others. Not uncommon near me to have cased caddis coming up the hole to hatch and fly away, all sorts of things down there are getting ready for ice out (best open water pannie fishing of the year)